As much as I liked such a semi-obscure character from Disney used as a Secret Boss, I was honestly really hoping for one of the Reapers of TWEWY to be present in Traverse Town, and would have been more than content if we got to fight, say, Minamimoto in his Taboo Noise form, or such like that. A guy can dream...
That would've been fantastic. Him or Konishi or Hanekoma as a secret boss in Traverse Town would've been 10/10.
Considering 2.8 will pretty much be DDDFM, maybe they'll sneak something like that in there. A man can hope, anyway.